Which statement about Pluto's discovery is FALSE?
A)It was predicted by Percival Lowell, based on perturbation theory.
B)It was discovered by Clyde Tombaugh close to Lowell's predicted position.
C)It was found in 1930, the first planet found by an American.
D)It was the massive jovian Lowell described as "Planet X" in his calculations.
E)Cold and dark, it was named for the god of the underworld.

Question

Quizplus · Accepted Answer

Pluto was not the massive jovian planet predicted by Percival Lowell as "Planet X." It turned out to be much smaller and was later reclassified as a dwarf planet. Pluto was not the massive jovian planet Lowell had predicted as "Planet X." Instead, it turned out to be a much smaller, icy world on the outskirts of the solar system.

Which Statement About Pluto's Discovery Is FALSE